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fermo
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0.1.0
A static site generator
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lib/fermo/helpers/links.ex
defmodule Fermo.Helpers.Links do
@doc false
defmacro __using__(_opts \\ %{}) do
quote do
require Fermo.Helpers.Links
def link_to(href, [do: content] = other) do
link_to(content, href, [])
end
def link_to(text, href) when is_binary(text) and is_binary(href) do
"<a href=\"#{href}\">#{text}</a>"
end
def link_to(href, attributes, [do: content] = other) when is_binary(href) and is_list(attributes) do
link_to(content, href, attributes)
end
def link_to(text, href, attributes) when is_binary(text) and is_binary(href) and is_list(attributes) do
attribs = to_attributes(attributes)
"<a href=\"#{href}\" #{Enum.join(attribs, " ")}>#{text}</a>"
end
defp to_attributes(attributes) do
Enum.map(attributes, &(to_attribute(&1)))
end
defp to_attribute({k, v}) when is_binary(v) do
"#{k}=\"#{v}\""
end
defp to_attribute({k, v}) when is_map(v) do
Enum.reduce(v, [], fn {k2, v2}, acc ->
"#{k}-#{k2}=\"#{v2}\""
end)
end
def mail_to(email, caption \\ nil, _mail_options \\ %{}) do
# TODO handle _mail_options
mail_href = "mailto:#{email}"
link_to((caption || email), mail_href)
end
end
end
end